Abstract
A closed-loop power control algorithm, which includes both power control and power allocation functions for DS-CDMA systems, is proposed. The target power level is updated by an iterative algorithm for a minimum mean square error (MMSE) linear filter receiver. The received power is compared with the target to generate the current power control command (PCC). The transmitted power is adjusted by applying a variable stepsize generator that utilizes the PCC history and the estimated mobile speed. Simulation results are presented to show the improvement of the proposed adaptive power control over the conventional fixed stepsize power control.
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This work has been supported by the Natural Science and Engineering Council of Canada under grant no. RGPIN 7779.
The original version of this chapter was revised: The copyright line was incorrect. This has been corrected. The Erratum to this chapter is available at DOI: 10.1007/978-0-387-35618-1_37
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© 2003 IFIP International Federation for Information Processing
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Zhao, L., Mark, J.W. (2003). Adaptive Closed-Loop Power Control Using an MMSE Receiver in DS-CDMA Systems. In: Omidyar, C.G. (eds) Mobile and Wireless Communications. IFIP — The International Federation for Information Processing, vol 106. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-35618-1_29
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DOI: https://doi.org/10.1007/978-0-387-35618-1_29
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